When Renoir was an older man he was afflicted with rheumatoid arthritis. During the last years of his life the pain was so bad he was confined to his home and he painted on in great pain. Matisse was much younger than he was but they were good friends and Matisse often visited him. Once when he was watching Renoir paint on in pain he asked him how why he continues when it was obviously so painful to him. Renoir replied "The pain passes, but the beauty remains."
Isn't that how we should be when difficult times come to us? To be patient as the Lord refines and shapes us, but ever with the hope that when the pain passes, the beauty will remain. I find that very hopeful to think on.